Home / 698,956,941.51-964,581,078.56-381,437,688.74

Finding the Fourth Proportional to 698,956,941.51, 964,581,078.56 and 381,437,688.74

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Solution

The fourth proportional to 698,956,941.51, 964,581,078.56 and 381,437,688.74 is: 526,395,197.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,956,941.51 : 964,581,078.56 = 381,437,688.74 : x
  2. Step 2: Convert to fraction form
    698,956,941.51/964,581,078.56 = 381,437,688.74/x
  3. Step 3: Cross multiply
    698,956,941.51x = 964,581,078.56 × 381,437,688.74
  4. Step 4: Simplify right side
    698,956,941.51x = 367,927,577,201,532,672
  5. Step 5: Solve for x
    x = 367,927,577,201,532,672/698,956,941.51
  6. Step 6: Final answer
    x = 526,395,197.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.